diff --git a/net/ipv4/netfilter/nf_socket_ipv4.c b/net/ipv4/netfilter/nf_socket_ipv4.c
index 5080fa5fbf6a..f9c6755f5ec5 100644
--- a/net/ipv4/netfilter/nf_socket_ipv4.c
+++ b/net/ipv4/netfilter/nf_socket_ipv4.c
@@ -94,6 +94,9 @@ struct sock *nf_sk_lookup_slow_v4(struct net *net, const struct sk_buff *skb,
 #endif
 	int doff = 0;
 
+	if (ntohs(iph->frag_off) & IP_OFFSET)
+		return NULL;
+
 	if (iph->protocol == IPPROTO_UDP || iph->protocol == IPPROTO_TCP) {
 		struct tcphdr _hdr;
 		struct udphdr *hp;
diff --git a/net/ipv6/netfilter/nf_socket_ipv6.c b/net/ipv6/netfilter/nf_socket_ipv6.c
index ced8bd44828e..893f2aeb4711 100644
--- a/net/ipv6/netfilter/nf_socket_ipv6.c
+++ b/net/ipv6/netfilter/nf_socket_ipv6.c
@@ -100,6 +100,7 @@ struct sock *nf_sk_lookup_slow_v6(struct net *net, const struct sk_buff *skb,
 	const struct in6_addr *daddr = NULL, *saddr = NULL;
 	struct ipv6hdr *iph = ipv6_hdr(skb), ipv6_var;
 	struct sk_buff *data_skb = NULL;
+	unsigned short fragoff = 0;
 	int doff = 0;
 	int thoff = 0, tproto;
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
@@ -107,8 +108,8 @@ struct sock *nf_sk_lookup_slow_v6(struct net *net, const struct sk_buff *skb,
 	struct nf_conn const *ct;
 #endif
 
-	tproto = ipv6_find_hdr(skb, &thoff, -1, NULL, NULL);
-	if (tproto < 0) {
+	tproto = ipv6_find_hdr(skb, &thoff, -1, &fragoff, NULL);
+	if (tproto < 0 || fragoff) {
 		pr_debug("unable to find transport header in IPv6 packet, dropping\n");
 		return NULL;
 	}